Improvement in harvesters



nire rares IMPROVEMENT IN HARVESTERS.

Specification forming part of Letters Patent No. 52,327, dated January30, 1866.

To all whom it may concern: i

Be it known that I, JOHN F. SEIBERLING, of Doylestown, in the county ofWayne and State of Ohio, have invented anew and useful Improvement inHarvesters; and I do hereby declare that the following is a full andexact description thereof, reference being had to the accompanyingdrawings, and to the letters of reference marked thereon.

My invention consists in an improved arrangement of the radial socketsof the reel-hub and in a spring-tension for the tightening-pulley of thereel chain or band.

In the accompanying drawings, Figure l represents a harvester with myimprovements attached. Fig. 2 is a detached view, showing thearrangement of the tightening-pulley of the reelchain with myimprovements. Fig. 3 is a separate view of the reel-post with mystiffpivoted pendant and the adjusting-bolt with rubber spring.

My improved reel-hub is represented at A, Fig. 1, of the accompanyingdrawings. This hub is cast with a main socket to receive the shaft Zinthe usual manner. The set of oblique sockets radiate from the end of thehub, as seen at a., Fig. l, in order to receive the oblique radial armsT, only one of which is shown in place in the drawings. From the outerend of these oblique sockets another set of radial sockets project,(seen at b, Fig. 1,) in order to receive and hold the set of shortradial arms W, Fig. l.

The principal advantages of this new arrangement of the sockets of thereel-hub are as follows:

First, both sets of sockets being at one end of the hub and one setprojected from the outer extremities of the other, the hub as a whole isof simple form and easily cast or molded like a hub with but a singleset of sockets. This hub may be molded with a twopart ask, while othersimilar hubs require a three-part flask, which is more complicated andexpensive both in construction and in molding.

Second, the outer sockets, b, form a good bearing for fastening the hubdirectly upon the face-plate of the lathe for boring the hole for theshaft Z or turning and finishing the hub. Other similar hubs not havingthe straight sockets at the extremity of the hub or oblique socketsrequire an additional faceplate put upon the lathe in order to hold suchhubs, thus making them more expensive in the manufacture.

Third, the sockets in my hub do not interfere with bolting'on the radiallarms as they would if one set of sockets were at the end and the otherat the middle or the other end ofthe hub.

My improved hub requires but a small amount of metal, and has nodisadvantages' consequent upon the new arrangement of the sockets.Therefore it is a substantial improvementin reel-hubs, it being bothcheaper in the manufacture and better in use.

The main object of my improvement in the reel-pulley is to give a springbearing or tension to the pulley employed in tightening the reel chainor band.

Upon the reel-post It, Fig. 2, is carried the reel-pulley I? in theusual manner, and the driving -pulley Q, is carried upon the main axle,the pulley being shown detached from the axle in Fig. 2 and in place inFig. l.

For the purpose of tightening the reel chain or band C, I employ adouble pulley, m m, Fig. 2, connected by a staple, n. This staple isattached to the lower end of the pendant B, Figs. 2 and 3, which ispivoted at its upper end, and capable of being swung to the left, so asto increase the tension of the tighteningpulleys m m.

An adjustingbolt, S, passes through two ears, one upon the pendant B andthe other fixed to the reel-post It, and is provided with a rubberspring, p, with a washer at each end, and also with a nut, o, to holdthe spring and washers in place. By this arrangement the pendant B maybe swung more or less to the left and the tension of thetightening-pulleys and of the band regulated at pleasure by turning thenut o. Thus the stiff pendant B, Fig. 3, in connection with the rubberspring p, produces a spring-tension upon the band.

In Fig. 2 the bolt S has a hook at one end, which seizes hold of theplate-pendant B, and thus serves the purpose of the ear upon the platein Fig. 3. 1t will also be observed that the pendant B in Fig. 2 has atwist near the middle in order to give this pendant a doublespring-action when made of steel; but I do not claim this twist orthespring-action of the plate itself'. I prefer the use ofthe rubberspring upon the bolt, or of a coiled spring in its place, and confine myimprovement in the pulley tension to such spring upon the bolt.

I am aware that reel-hubs have been east with two sets ot' sockets andradial arms. Therefore I confine my claims to the abovedeseribed newarrangement of the two sets of sockets.

.Having thus fully described lny invention, what I claim, and desire tosecure by Letters Patent of the United States, is-

Witnesses S. H. MILLER, L. HUFFMAN.

JOHN F. SEIBERLING. f

